Hey guys, I only read the first couple pages and the last page and haven't seen anyone mention it, The rears are very similar to the 3000GT.

I just bought my HD a few months ago from a friend and he had blown out his rear JIC coilovers. So he looked around and slightly modified a set of Bilstein Coilovers made for the 3000GT and they work great! Next time I talk to him I'll see if I can get a little more info and next time I am under my car I'll snap a few shots for everyone.